2014 Colby Fire - Los Angeles County, California

Date of origin:
January 16, 2014
34.159, -117.873
Total Area Burned:
8 km²

Preliminary Hazard Assessment


The interactive map above displays estimates of the probability of debris flow (in %), potential volume of debris flow (in m3), and combined relative debris flow hazard. These predictions are made at the scale of the drainage basin, and at the scale of the individual stream segment. Estimates of probability, volume, and combined hazard are based upon a design storm with 10-year recurrence interval (i.e., a 1 in 10 chance of a storm of that magnitude occurring in any given year). Predictions may be viewed interactively by clicking on the button at the top right corner of the map displayed above. Visit the Scientific Background page for more information on how the predictions are calculated. For more information about what to do in case you live in an area where debris flows are possible, please visit If you live in a recently burned area, and there is a rainstorm…

You can also contact the Glendora Police Department or Los Angeles County Sheriff.


Below are the shapefiles and geodatabase information that was used in the creation of the maps on this page.